“How long will you work on the farm?” “____ the end of next year.”
--- Would you mind if I smoked here?---I am afraid…, but if you________.
How long do you suppose it is ___________ he arrived there?
---Will you join us in the game?---Thank you,_________ .
So many years have passed and the terrifying accident is still ______in her mind.
When Chinese people talk about American cities, the first_____ comes into their minds is San Francisco.